diff options
| author |   Duncan Ma <duncan.ma@amd.com> | 2022-05-17 17:50:23 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-06-07 16:09:53 -0400 |
| commit | 0c56705d8aae9696348cc320b71d531ede001b79 (patch) | |
| tree | 703395b1d1e48dfcb3f2fb5469eda4edbec3fd74 | |
| parent | drm/amd/display: Blank eDP on enable drv if odm enabled (diff) | |
drm/amd/display: Correct min comp buffer size
[Why]
In 3-way mpo pipes, there is a case that we
overbook the CRB buffer size. At rare instances,
overbooking the crb will cause underflow. This only
happens when det_size changes dynamically
based on pipe_cnt.
[How]
Set min compbuff size to 1 segment when preparing BW.
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c index 54db2eca9e6b..1b02f0ebe957 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/dcn31_fpu.c @@ -201,7 +201,7 @@ struct _vcs_dpi_ip_params_st dcn3_15_ip = { .hostvm_max_page_table_levels = 2, .rob_buffer_size_kbytes = 64, .det_buffer_size_kbytes = DCN3_15_DEFAULT_DET_SIZE, - .min_comp_buffer_size_kbytes = DCN3_15_MIN_COMPBUF_SIZE_KB, + .min_comp_buffer_size_kbytes = 64, .config_return_buffer_size_in_kbytes = 1024, .compressed_buffer_segment_size_in_kbytes = 64, .meta_fifo_size_in_kentries = 32, @@ -297,6 +297,7 @@ struct _vcs_dpi_ip_params_st dcn3_16_ip = { .hostvm_max_page_table_levels = 2, .rob_buffer_size_kbytes = 64, .det_buffer_size_kbytes = DCN3_16_DEFAULT_DET_SIZE, + .min_comp_buffer_size_kbytes = 64, .config_return_buffer_size_in_kbytes = 1024, .compressed_buffer_segment_size_in_kbytes = 64, .meta_fifo_size_in_kentries = 32, |